Spinal implant device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device.

CERVICAL PLATE WITH SCREW LOCK RETENTION CLIP

A cervical plate having improved mounting screws that employ a retention clip for automatically engaging the head portion of the screw during insertion into countersunk apertures. The arrangement prevents the mounting screws from migrating out of the bone material during use.

Intervertebral expandable spacer

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

SPRING SCREW APPARATUSES AND METHODS OF USING SAME

A locking spring screw, comprising a screw body having a flexible spring member positionable within a screw head. The screw head comprises a tool slot adapted for receipt of a spring member and includes at least one outlet adjacent to the tool slot adapted for passage therethrough of a tongue of the spring member. A slotted aperture located opposite the outlet from the screw head is positioned at least partially around the circumference of the screw head for engaging the tongue and securing the screw body to an implant when the spring member is in an unbiased condition. 1. A spring screw for use in combination with an implant screw hole , said screw hole having an inner sidewall with a slotted aperture formed along the inner sidewall comprising:a screw defined by a head portion and a threaded cylindrical body extending therefrom, said head portion having an outer sidewall constructed and arranged to interface with the inner sidewall of the implant screw hole;a tool slot formed in an upper surface of said head portion, said tool slot having a centrally disposed aperture extending to the cylindrical body with a slot extending from said aperture to said sidewall;a first outlet formed at a first end and a second outlet formed at a second end of said slot, said first and second outlet are adjacent said slotted aperture when said spring screw is inserted into said implant screw hole;a spring member positionable within said tool slot, said spring member ends extending through said outlets to engage said slotted aperture when said spring member is in a natural state;wherein a tool threaded into said top opening flexes the spring member, forcing the ends of said spring member to retract into said outlets allowing insertion of the screw head into the implant screw hole, and upon removal of the tool the ends of said spring member extend through said outlets to engage said slotted aperture to maintain an outer side wall of said screw body to an inner edge of the implant screw ...

PLIF HINGED SPACER

A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand both in height and width, and to maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces. 1. A spinal implant comprising:a hinged distractor formed from an upper support body defined by a proximal end and a distal end with spaced apart side edges, said upper support body having an upper surface and a lower surface with first and second sloped walls extending from the lower surface having a first height adjacent the proximal end tapering to a second height adjacent the distal end pivotedly coupled to a lower support body defined by a proximal end and a distal end with spaced apart side edges, said lower support body having an outer surface and an inner surface with first and second sloped walls extending from the inner surface having a first height adjacent the proximal end tapering to a second height adjacent the distal end; andan insert body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior end walls and a substantially hollow center; said insert body sized for slidable insertion between said upper support body and said lower support body.2. The spinal implant according to wherein said first height of said walls is greater than said second height of said walls.3. The spinal implant according to wherein said proximal end of said first and second sloped walls of said upper support body includes outwardly facing pinions insertable into apertures on said proximal end of said first and second ...

Expandable corpectomy device

The instant invention is a longitudinally adjustable corpectomy device which fits within the intervertebral distracted channel. A ratchet mechanism allows for an extendable member to adjust to a longer length to accommodate a distracted channel. The ratchet type mechanism allows the members to move in a unidirectional movement to prevent the two members from contracting once expanded.

Low profile spinal fixation system

A spinal fixation system that includes at least two pedicle screws and a connector plate attached to each pedicle screw with a locking nut at a first end. A rod connector member attached to a second end of each connector plate with a rod connecting member locking lock. A spinal rod connected to at least two of the rod connector members. The pedicle screw including a cup shaped member that conforms to a lower mating surface on the connector plate and the locking nut having a mating surface with the upper surface of the connector plates to provide a polyaxial connection between the pedicle screw and the connector plate. The rod connector, connecting plate, and, rod connector locking nuts having mating surfaces that allow polyaxial motion between the rod connector member and the connector plate. The spinal fixation system provides a low profile system that is more easily implanted and adjustable so as to reduce the stress to the spinal column and trauma to the surgical incision.

Pedicle-based construct facet joint fixation device

A facet joint fixation device formed from a flexible wedge shaped implant constructed from a single piece of material. The device is defined by an insert end spaced apart from outer end by first and second side members. Each side support is cut by a series of recesses defining a living hinge therebetween.

INTERVERTEBRAL EXPANDABLE SPACER

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

PLIF hinged spacer

A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand both in height and width, and to maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces.

LOW PROFILE SPINAL FIXATION SYSTEM

A spinal fixation system that includes at least two pedicle screws and a connector plate attached to each pedicle screw with a locking nut at a first end. A rod connector member attached to a second end of each connector plate with a rod connecting member locking lock. A spinal rod connected to at least two of the rod connector members. The pedicle screw including a cup shaped member that conforms to a lower mating surface on the connector plate and the locking nut having a mating surface with the upper surface of the connector plates to provide a polyaxial connection between the pedicle screw and the connector plate. The rod connector, connecting plate, and, rod connector locking nuts having mating surfaces that allow polyaxial motion between the rod connector member and the connector plate. The spinal fixation system provides a low profile system that is more easily implanted and adjustable so as to reduce the stress to the spinal column and trauma to the surgical incision. 1. A spinal fixation assembly comprising:a first pedicle screw and a second pedicle screw;a first connector plate attached to said first pedicle screw and a second connector plate connected to said second pedicle screw;a first rod connector member attached to said first connector plate and a second rod connector attached to said second connector plate;a spinal rod attached to both said first rod connector member and said second rod connector member;said first and said second pedicle screws each including a cup shaped receiver;each cup shaped receiver including a concave mating surface;said first connector plate having a first end and a second end;said second connector plate having a first end and a second end;said first end on each of said first and second connectors plates including an upper concave surface and a lower convex surface;the second end on each of the first and second connector plates including an upper concave surface and a lower concave surface,the lower convex surface on said ...

Implantable spinal insert system

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

Facet fixation with anchor wire

A facet fixation device formed from an anchor screw and a collet or facet screw that is secured to adjacent pedicles. The anchor screw having an aperture for receipt of a first end of guide wire or polyaxial based facet screw. The collet includes a unidirectional attachment mechanism wherein a wire can be drawn to a desired position to fix the distance between the anchor screw and the collet. Excess wire can then be removed.

IMPLANTABLE SPINAL INSERT

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert. 114-. (canceled)15. An implantable spinal insert , comprising:a one piece body having a fixed geometric arcuate configuration, a top surface and a bottom surface, a convex first side and an opposite concave second side, a first curved end portion and an opposite second curved end portion,a first post extending between said top surface and said bottom surface, said first post being located adjacent said first curved end portion, and a second post extending between said top and bottom surface, said second post being located between said first post and said second curved end portion, anda slotted passageway between said top surface and said bottom surface extending through said first curved end portion and into said concave second side, said slotted passageway communicating with said first post and said second post, said second post being exposed through said slotted passageway for engagement with an instrument to facilitate rotation of said insert about said second post.16. The insert of claim 15 , wherein said second post is located adjacent to concave second side of said insert.17. The insert of claim 16 , wherein said insert further includes a fully bounded aperture ...

Adjustable spinous process spacer device and method of treating spinal disorders

Provided is a bi-dimensionally adjustable spacing device configured to be placed between the spinous processes of at least two adjacent vertebrae and also adjusted laterally to securely contact the lateral surfaces of the spinous process. A method of using the device to treat spinal disorders is also provided.

PLIF hinged spacer

A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand and maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces.

Transpedicular nucleus replacement system

A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion.

Cannulated screw with balloon

A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the porperties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion.

Spinal disc prosthesis

A spinal implant for insertion between adjacent vertebrae to function as a disc prosthesis. The prosthesis is formed from two plates fastened to adjacent vertebrae facing each other. The facing sides of the plates have a donut shaped cushioning coupler to replicate the displaced disc material. Stabilizing links are positioned along the edge of the plates to prevent over compression of the shaped cushioning coupler in a bending moment. Adjustable mounting brackets are used to secure the implant to the spine.

Implantable spinal insert

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

Intervertebral expandable spacer

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

IMPLANTABLE SPINAL INSERT SYSTEM

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

Intervertebral Spacer

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. 1. An implantable insert system comprising:a surgical delivery instrument, said delivery instrument including a sleeve having a longitudinal axis, a first end of said sleeve configured to cooperate with an insert and a second end of said sleeve adapted to be manually controlled, and an arm having a longitudinal axis, said arm mounted on said sleeve, a first end of said arm configured to releasably engage said insert.2. The implantable insert system of wherein said sleeve includes a guide rail claim 1 , said guide rail cooperating with engaging surfaces claim 1 , each engaging surface formed on opposite sides of said arm to support said arm on said sleeve and to allow said sleeve to reciprocally move along its longitudinal axis relative to the arm3. The implantable insert system of wherein the first end of said sleeve has a curved surface that operatively mates with a curved portion of said insert.4. The implantable insert system of wherein the first end of said arm includes a recess that has a portion that is generally cylindrical in cross section and is configured to receive a post on said insert.5. The implantable insert system of wherein the first end of said sleeve has a corner portion that contacts a portion of said insert and imparts rotational movement to said insert.6. An implantable ...

Minimally invasive spine surgery instruments: spinal rod with flange

The present invention provides for a bone fixation device, illustrated as a spinal rod, for use in bone fixation surgeries. The bone spinal rod of the present invention is constructed and arranged to allow a surgeon to control proper placement while prohibiting the rod from passing out of a receiving component. In an illustrative embodiment, the spinal rod includes comprises a first end, a second opposing end, and a main body there between. At least one end contains a flange.

MINIMALLY INVASIVE SPINE SURGERY INSTRUMENTS: GUIDE WIRE HANDLE WITH A GUIDE WIRE LOCKING MECHANISM

Disclosed are various instruments and implants used in minimally invasive spine surgery. Disclosed is a cannulated probe, a guide wire handle; a guide wire handle having a locking mechanism, an all-in-one guide wire tool; a retractor flex rod passage; or a tab break tool. 1. A guide wire management system adapted to control the position of a guide wire during the insertion of various hole creating devices and/or screws comprising a handle , cannulated body , and a device for insertion into a vertebral body.2. The guide wire management system adapted to control the position of a guide wire during the insertion of various hole creating devices and/or screws according to further including a locking member constructed and arranged to maintain a guided wire in stationary position as said handle or said cannulated body is advanced. In accordance with 37 C.F.R. 1.76, a claim of priority is included in an Application Data Sheet filed concurrently herewith. Accordingly, the present invention claims priority to U.S. Provisional Patent Application No. 61/704,132, entitled “MINIMALLY INVASIVE SPINE SURGERY INSTRUMENTS”, filed Sep. 21, 2012. The contents of which the above referenced application is incorporated herein by reference.This invention relates to instruments and implants used to treat various problems of the spine.Minimally invasive spine surgery can be used to effectively treat disorders of the spinal discs with minimal muscle related injury. In many procedures, a surgeon makes several small incisions (percutaneous) wherein a miniature camera (usually a laparoscope or endoscope) is placed so the surgeon can view the procedure as a magnified image on video monitors in the operating room. Specialized instruments are placed through the incisions to perform various procedures. Minimally invasive spine surgery may include: Spinal fusion such as on degenerative disks; deformity corrections, such as for scoliosis; repair of herniated disks; repair and stabilization of ...

Spinal Implant Device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or contracting the device in cooperation with a hinge assembly. 1. A spinal fusion device for implanting or placing between adjacent vertebrae comprising:a hollow body having an upper section with a top surface for contacting one vertebra and a lower section having a bottom surface for contacting an adjacent vertebra, said top surface and said bottom surface constructed and arranged for engaging the vertebra, each section having a depending sidewall opposite at least one joint having an aperture, said at least one joint constructed and arranged to receive a rod thereby forming a pivot assembly, a top sidewall being slidably mounted over a bottom sidewall, each sidewall constructed and arranged for engaging a distractor, positioned between said upper section and said lower section is a hollow body section,said hollow body section having a first end comprising an angled surface and a second end comprising an opening for disposing of a distractor; said hollow body section having at least one joint having an aperture constructed and arranged to receive said rod, said hollow body constructed and arranged for receipt of bone graft material.2. The spinal fusion device of claim 1 , wherein the distractor comprises:an actuator at one end of an elongated member disposed through the opening of the end of the hollow body section,a distractor body comprising protruding members, wherein the protruding members are engaged by slots or grooves in the sidewalls of the upper and lower sections, whereby the distance between the top and bottom surfaces is adjustable as the protruding members of the distractor body move within the slots or grooves, thereby moving the upper section relative to the lower section.3. The spinal fusion device of claim 2 , ...

CANNULATED SCREW WITH BALLOON

A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion. 1. A cannulated screw comprising: a hollow body with an open first end and an open second end , a balloon body secured to said open first end with a ferrule element , said balloon body extending entirely into said hollow body when in a non-deployed position and extending out of said hollow body when volumetric material is directed through said open second end causing expansion of said balloon body in a deployed position , a threaded cap attached to said open second end , said threaded cap having threads positioned along an inner surface , and a locking plug securable to said threaded cap , said locking plug maintaining volumetric material in said balloon body to maintain said balloon body in the deployed position.2. The cannulated screw of claim 1 , wherein the ferrule is inserted in an open end of the balloon body forming a seal between said open first end of the hollow body arid said balloon body.3. The cannulated screw of claim 1 , wherein said open second end comprises threads for receiving said threaded cap claim 1 , said threaded cap includes threads for temporarily receiving a dispenser for use in inserting volumetric material into said balloon body.4. The cannulated screw of claim 1 , wherein the locking plug further comprises an O-ring seal.5. The cannulated screw of claim 1 , wherein volumetric material comprises a biological agent or other material delivered to said balloon body from said open second end of the hollow body.6. The cannulated screw of claim 1 , wherein the cannulated screw comprises external threading claim 1 , the external threading extending from said open second end and ...

Spinal implant device

A spinal fusion device that is expandable along a side edge. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or contracting the device along a side edge.

Intervertebral Expandable Spacer

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert. 1. An expandable insert system comprising;a frame having a geometric configuration, said frame having a top and bottom surface, said top and bottom surfaces being arcuate in shape and having a first edge surface on a first side and a second edge surface on a second opposite side, said first and second edges each having a first and second end portion, the first ends of said first and second edges being connected to one another by a first curved portion, and the second ends of said first and second edges being connected to one another by a second curved portion, said frame having an inner side wall with a plurality of alignment posts;a first and second insert constructed and arranged to fit within said inner side wall of said frame, said first insert having a top surface with a plurality of edge sleeves slidably secured to said frame alignment posts, said second insert having a bottom surface with a plurality of edge sleeves slidably secured to said frame alignment posts;a wedge member positioned between said first and second insert;an adjustment post extending between said top and bottom insert approximately equidistant between first and second ends of the frame, said ...

ADJUSTABLE SPINOUS PROCESS SPACER DEVICE AND METHOD OF TREATING SPINAL DISORDERS

Provided is a bi-dimensionally adjustable spacing device configured to be placed between the spinous processes of at least two adjacent vertebrae and also adjusted laterally to securely contact the lateral surfaces of the spinous process. A method of using the device to treat spinal disorders is also provided. 1. A spinal device comprising:a first longitudinal member having a first end and a second end,a second longitudinal member having a first end and a second end,a first and second transverse member,a first spinous process pad dimensioned to slidably fit over a top portion of said first longitudinal member, said spinous process pad comprising a first plate and a second plate in an approximately parallel orientation to one another, an aperture dimensioned to receive said first transverse member, and a threaded aperture for receipt of a set screw and locking plate,a second spinous process pad dimensioned to slidably fit over a top portion of said second longitudinal member, said spinous process pad comprising a first inner or proximal plate and a second or distal plate in an approximately parallel orientation to one another wherein said first or proximal plate is connected to said first transverse member, a threaded aperture for receipt of a set screw, and a locking plate,a position locking mechanism capable of securely holding each of said first and second transverse members in a selected position relative to said first and second longitudinal members and respective adjacent spinous processes after said first and second transverse members have been selectively adjusted both laterally and longitudinally relative to said longitudinal members and the respective adjacent spinous processes.2. The spinal device of claim 1 , wherein said first longitudinal member comprises a through portal which aligns with said second transverse member connected to said second longitudinal member in a direction generally aligned with the longitudinal axis of the spine claim 1 , said ...

Spinal implant device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device.

EXPANDABLE CORPECTOMY DEVICE

The instant invention is a longitudinally adjustable corpectomy device which fits within the intervertebral distracted channel. A ratchet mechanism allows for an extendable member to adjust to a longer length to accommodate a distracted channel. The ratchet type mechanism allows the members to move in a unidirectional movement to prevent the two members from contracting once expanded. 119. A corpectomy device comprising: a base member formed from a housing having a lower end with first and second () side walls spaced apart and extending therefrom , with opposing end walls , at least one end wall having a centrally disposed U-shaped slot extending from the lower end along a length of the opposing end walls , said U-shaped slot having at least one edge having an engaging surface;a lower endplate securable to an end of said base member, said lower endplate including an extension tab having at least one aperture for receipt of a mounting screw for fastening said lower endplate to bone;an expansion member having first and second side walls and first and second. end walls constructed and arranged to encompass said base member side and end wall and permit telescope expansion thereto, said side of said expansion member including an aperture placed adjacent to said U-shaped. slot;an upper endplate securable to an end of said expansion member, said upper endplate including an extension tab having at least one aperture for receipt of a mounting screw for fastening said upper endplate to bone;a biasing ratchet assembly mounted within said base member having at least one engagement prong operatively associated with said engaging surface and said expansion member;wherein said aperture is sized to receive a pinion tool for use in extending said expansion member in relation. to said base member, said engagement prong insertable into said engaging surface to prevent said expansion member from contracting once telescoped.2. The corpectomy device according to claim wherein said ...

Method of positioning a spinal implant

An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

SPINAL IMPLANT DEVICE WITH BONE SCREWS

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding compacting the device. 1. A spinal fusion device comprising:an upper member having a top surface for contacting vertebra and outer sidewalls depending therefrom having two parallel sloped slots in a first direction;a lower member having a bottom surface for contacting vertebra and inner sidewalls depending therefrom having two parallel sloped slots in a second opposite direction than said upper member, said inner sidewalls arranged to fit inboard said outer sidewalls;a housing having a front wall, a rear wall and a first side wall forming a mirror image of a second side wall, said front wall having a centrally disposed aperture for receipt of an adjustment screw and at least one offset aperture for receipt of a bone screw, said first and second side walls including a positioning slot;an actuator having a body member with a through-hole, said body member having a first end wall with projecting first and second protruding members for slidable insertion in said first side wall slot of said housing and a second end wall with projecting first and second protruding members for slidable insertion in said second side wall slot of said housing forming a mirror image of said first slot;an adjustment screw engaging said through-hole;wherein said device is placed between adjacent vertebra with a bone screw inserted into said housing offset aperture, securing said device to the vertebra, whereby said adjustment screw is rotated to move said actuator, displacing said upper and lower members.2. The spinal fusion device according to claim 1 , wherein said upper member and said lower member are U-shaped.3. The spinal fusion device according to claim 1 , wherein said actuator includes a receptacle positioned around said through hole for ...

Drywall Patch Kit

The present invention is directed to a drywall repair system designed to repair damage, such as holes from nails or picture hooks remaining in a wall once a picture has been removed. The system contains a handle, at least one drywall reamer configured to couple with the handle, and at least one drywall plug sized to fit within a hole created by the reamer bit. The drywall repair system provides a quick and easy system for repairing walls without the requirement of air curing and use of spackle. 1. A drywall patch kit comprising:a handle formed from a main body having a first end and a second end;at least one reamer bit releasably securable to the second end of said handle, said reamer bit constructed and arranged to form a sized hole in drywall; andat least one drywall plug having a tapered body dimensioned for frictional engagement in the sized hole and a flat surface to be positioned flush with a drywall surface.2. The drywall patch kit according to wherein said main body has a generally cylindrical shape.3. The drywall patch kit according to wherein said main body includes a compartment accessed by a removable cap releasably securable to the first end claim 1 , said compartment sized and shaped to hold at least one reamer bit therein.4. The drywall patch kit according to wherein said second end of said main body includes a tri-lobe pocket for receiving a reciprocal end of said reamer bit.5. The drywall patch kit according to wherein each said reamer bit has a plurality of reaming flutes forming a cutting edge extending from a pointed tip to a depth stop claim 1 , said reaming flutes arranged to cut a hole in drywall of a predetermined size upon rotation of said reamer bit.6. The drywall patch kit according to wherein said flutes are straight.7. The drywall patch kit according to wherein said flutes are angled.8. The drywall patch kit according to wherein said drywall plug is constructed from an unfinished paintable material.9. The drywall patch kit according to ...

PEDICLE-BASED CONSTRUCT FACET JOINT FIXATION DEVICE

A facet joint fixation device formed from a flexible wedge shaped implant constructed from a single piece of material. The device is defined by an insert end spaced apart from outer end by first and second side members. Each side support is cut by a series of recesses defining a living hinge therebetween. 1. A flexible wedge shaped implant comprising an insert end , an outer end , wherein the insert end and the outer end are spaced apart by a first and a second side member.2. The flexible wedge shaped implant of claim 1 , wherein each arcuate side member comprises at least one recess defining a hinge structure.3. The flexible wedge-shaped implant of claim 1 , wherein each side member comprises a plurality of recesses defining a hinge structure.4. The flexible wedge-shaped implant of claim 1 , wherein the insert end comprises a tapered end.5. The flexible wedge-shaped implant of claim 1 , wherein the outer end comprises a planar surface having flat or curved sides or combinations thereof claim 1 , and at least one opening for receiving surgical or other instruments.6. The flexible wedge-shaped implant of claim 1 , wherein the outer end comprises a curved surface and at least one opening for receiving surgical or other instruments.7. A facet spacer device comprising an insert end claim 1 , a spacer end claim 1 , wherein the insert end and the spacer end are connected by a first and a second side member claim 1 , wherein each side member comprises at least one recess defining a hinge structure.8. The facet spacer device of claim 7 , wherein each arcuate side member comprises a plurality of recesses defining a hinge structure.9. The facet spacer device of claim 7 , wherein the insert end comprises a tapered end.10. The facet spacer device of claim 7 , wherein the spacer end comprises a curved surface or a planar surface having flat or curved sides or combinations thereof claim 7 , and at least one opening for receiving a pedicle screw or other instruments.11. The facet ...

TRANSPEDICULAR NUCLEUS REPLACEMENT SYSTEM

A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion. 1. A transpedicular nucleus replacement device comprising a cannulated screw having a hollow body with an open first end and an open second end , an expandable body having an open end , a ferrule , a threaded cap , or a locking plug.2. The transpedicular nucleus replacement device of claim 1 , wherein the expandable body extends upward into the hollow body from the open first end.3. The transpedicular nucleus replacement device of claim 1 , wherein the ferrule is inserted in the open end of the expandable body forming a seal between the open first end of the cannulated screw and the expandable body.4. The transpedicular nucleus replacement device of claim 1 , wherein the second open end comprises threads for receiving a threaded cap claim 1 , the threaded cap comprising threads for receiving a locking plug.5. The transpedicular nucleus replacement device of claim 4 , wherein the threaded cap or locking plug further comprising an O-ring seal.6. The transpedicular nucleus replacement device of claim 1 , wherein the expandable body is fillable with fluids claim 1 , filling biological agents or other material claim 1 , the filling delivered to the expandable body from the open second end of the cannulated screw.7. The transpedicular nucleus replacement device of claim 1 , wherein the expandable body is a balloon.8. The transpedicular nucleus replacement device of claim 1 , wherein the cannulated screw comprises external threading claim 1 , the external threading extending from about the second open end and extending for about one half to about a quarter of the length of the cannulated screw.9. A ...

Spinal Disc Prosthesis

A spinal implant for insertion between adjacent vertebrae to function as a disc prosthesis. The prosthesis is formed from two plates fastened to adjacent vertebrae facing each other. The facing sides of the plates have a donut shaped cushioning coupler to replicate the displaced disc material. Stabilizing links are positioned along the edge of the plates to prevent over compression of the shaped cushioning coupler in a bending moment. Adjustable mounting brackets are used to secure the implant to the spine. 1. A spinal implant comprising: an upper endplate having an upper surface with at least one mounting receptacle having a mounting bracket secured thereto and an inwardly facing surface with multiple recesses , a lower endplate forming a mirror image of said upper endplate defined by a lower surface having at least one mounting receptacle having a mounting bracket secured thereto and an inwardly facing surface with multiple recesses , stabilizing linkers having a first end positioned within the upper endplate recess and a lower end positioned within the lower endplate recess; and a cushioning coupler positioned with a space defined by the stabilizing linkers and said inner surfaces; wherein said spinal implant is placed within an intervertebral space and secured thereto.2. The spinal implant of claim 1 , wherein the upper and lower endplates comprise a planar surface claim 1 , rounded or curved edges.3. The spinal implant of claim 1 , wherein the upper and lower end plates comprise an outward facing surface claim 1 , for receiving the depth stop and engaging a vertebra; an inward facing surface for engaging the cushioning coupler.4. The spinal implant of claim 3 , wherein the outward facing surfaces of the upper and lower plates comprise one or more receptacles claim 3 , recesses or grooves for receipt of the depth stop.5. The spinal implant of claim 3 , wherein the inward facing surface having a shaped body claim 3 , the shaped body comprising a convex dome claim ...

Expandable corpectomy device

The instant invention is a longitudinally adjustable corpectomy device which fits within the intervertebral distracted channel. A ratchet mechanism allows for an extendable member to adjust to a longer length to accommodate a distracted channel. The ratchet type mechanism allows the members to move in a unidirectional movement to prevent the two members from contracting once expanded.

DISTRACTIBLE SKID SPINAL IMPLANT

A spinal fusion implant for implantation between adjacent vertebrae is described. The distractible spinal implant device contains a main body, a first end plate, and a second end plate. Each of the end plates are adapted to independently and slidably engagement with the main body to form a cage structure for spacing of adjacent vertebra. 1. A distractible skid spinal implant comprising: a substantially rectangular main body defined by an upper surface spaced apart from a lower surface with a first sidewall having an upper section extending above the upper surface of the main body and a lower section extending below the lower surface of the main body , and a second sidewall having an upper section extending above the upper surface of the main body and a lower section extending below the lower surface of the main body , said second sidewall forming a mirror image of said first sidewall;a first end plate constructed and arranged for placement between said upper sections above the upper surface of the main body; and a second end plate independent of said first end plate constructed and arranged for placement between said lower sections of said lower surface of the main body;wherein said first and second end plates are positioned between two adjacent vertebra and said main body placed therebetween to allow spacing of the adjacent vertebra.2. The spinal implant according to wherein said first and second end plate each include inner teeth for engaging said main body and gripping teeth placed along an outer surface for engaging bone.3. The spinal implant according to wherein said inner teeth and said gripping teeth are directional to allow ease of insertion of the main body between the plates and inhibit retraction.4. The spinal implant according to wherein said first and second end plates include an end wall extending outwardly from said outer surface a distance to act as a buttress stop.5. The spinal implant according to wherein said first and second end plates include a ...

PLIF HINGED SPACER

A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand and maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces. 1. A spinal implant comprising:a hinged distractor formed from an upper support body having a substantially flat top plate defined by a proximal end and a distal end with spaced apart side edges, said top plate having an upper surface and a lower surface with first and second sloped walls extending from the lower surface having a first height adjacent the proximal end tapering to a second height adjacent the distal end pivotedly coupled to a lower support body having a substantially flat bottom plate defined by a proximal end and a distal end with spaced apart side edges, said bottom plate having an outer surface and an inner surface with first and second sloped walls extending from the inner surface having a first height adjacent the proximal end tapering to a second height adjacent the distal end; andan insert body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior end walls and a substantially hollow center; said main body sized for slidable insertion between said top and bottom plate.2. The spinal implant according to wherein said first height of said walls is greater than said second height of said walls.3. The spinal implant according to wherein said proximal end of said first and second sloped walls of said top plate includes outwardly facing pinions insertable into apertures on said proximal end of said first and second ...

FACET FIXATION WITH ANCHOR WIRE

A facet fixation device formed from an anchor screw and a collet or facet screw that is secured to adjacent pedicles. The anchor screw having an aperture for receipt of a first end of guide wire or polyaxial based facet screw. The collet includes a unidirectional attachment mechanism wherein a wire can be drawn to a desired position to fix the distance between the anchor screw and the collet. Excess wire can then be removed. 1. A facet fixation system comprising: an anchor screw having a first end and a second end with a slotted aperture therebetween , a set screw having threads for moving a polyaxial capture cup formed in said set screw along the length of said slotted aperture; and a facet screw having a polyaxial shaped first end constructed and arranged for securement in said slotted aperture by said set screw and a second end having a locking assembly;wherein said anchor screw is mounted to vertebrae bone and said facet screw is placed in adjacent vertebrae bone to capture a facet spacer therebetween.2. The facet fixation system according to wherein said facet screw is cannulated for receipt of a guide wire claim 1 , wherein said facet screw is slidably positioned along a length of said guide wire.3. The facet fixation system according to wherein said a guide wire is coupled to said anchor screw and said facet screw is drawn toward said anchor screw before securement.4. The facet fixation system according to wherein said facet screw locking assembly is further defined as floating washer having an inner surface and an outer surface claim 1 , said inner surface constructed and arranged to receive a threaded retention nut for securement to said facet screw claim 1 , said outer surface including anchoring teeth for frictional securement to bone.5. The facet fixation system according to wherein said threaded retention nut has a curved lower surface dimensioned for placement within a curved inner surface of said floating washer whereby said retention nut comprises ...

Locking cervical plate

A triangular shaped locking cervical plate bounded by three side walls terminating in corners having an aperture adapted to receive a bone screw. A recess is formed in an upper surface of the plate which includes a recess with a continuous sidewall interconnecting each aperture. A locking element is rotatably attached to the cervical plate having two tangs extending outwardly a first distance and a third tang extending outwardly a second distance. The locking element including the tangs are constructed and arranged to fit within the recess. Each aperture is open to receive a bone screw when the locking element is rotated into an unlocked position. Each end of the tang overlays a portion of the bone screw placed within the aperture when the locking element is rotated into a locked position. 1. A cervical plate comprising: a triangular shaped plate having an upper surface and a bottom surface bounded by three side walls terminating in corners , each corner having an aperture adapted to receive a bone screw , a recess section formed in said upper surface forming a lower surface interconnecting each said aperture; a Y-shaped locking element having a hub rotatably attached to said recessed section , said locking element further defined by two tangs extending outwardly from said hub a first distance and a third tang extending outwardly from said hub a second distance which is less than said first distance , said tangs constructed and arranged to rotate from an unlocked position allowing insertion of said bone screws into said apertures to a locked position preventing said bone screws from backing out of said apertures;2. The locking cervical plate according to wherein two of said three side walls of said triangular shaped plate are equal in length.3. The locking cervical plate according to wherein each said two tangs are spaced apart from said hub an equal distance claim 1 , and said third tang is spaced apart from said hub at a distance less than said two tangs.4. The ...

Polyaxial cannulated screw

A polyaxial cannulated screw having a resilient expandable body capable of supporting compressive and cyclic loads. The expandable body provides an artificial disc prosthesis by use of the expandable body that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion. A U-shaped saddle attached to a spherical ball permits optimum positioning of a rod member by polyaxial placement.

PLIF HINGED SPACER

A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand both in height and width, and to maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces. 1. A spinal implant comprising:an upper support body composed of a first upper section member having a proximal end including a first upwardly facing pinion and a distal end having a second upwardly facing pinion with a slotted aperture formed along a depending leg, anda second upper section having a proximal end with a first slotted aperture for receipt of said first pinion and a distal end with a second slotted aperture for receipt of said second pinion and a slotted aperture formed along a depending leg;said upper section members combine to form a common upper surface and a lower surface with first and second sloped walls extending from the lower surface having a first height adjacent the proximal end tapering to a second height adjacent the distal end;a lower support body composed of a first lower section member having a proximal end with a first downwardly facing pinion and a distal end with a second downwardly facing pinion and a first outwardly extending pinion formed along a first depending leg for pivotedly coupling to said second slotted aperture of said second upper section, anda second lower section member having a proximal end with a slotted aperture for receipt of said downwardly facing pinion of said first lower section member and a second slotted aperture for receipt of said downwardly facing pinion of said first lower section ...

LOW PROFILE SPINAL FIXATION SYSTEM

A spinal fixation system that includes at least two pedicle screws and a connector plate attached to each pedicle screw with a locking nut at a first end. A rod connector member attached to a second end of each connector plate with a rod connecting member locking lock. A spinal rod connected to at least two of the rod connector members. The pedicle screw including a cup shaped member that conforms to a lower mating surface on the connector plate and the locking nut having a mating surface with the upper surface of the connector plates to provide a polyaxial connection between the pedicle screw and the connector plate. The rod connector, connecting plate, and, rod connector locking nuts having mating surfaces that allow polyaxial motion between the rod connector member and the connector plate. The spinal fixation system provides a low profile system that is more easily implanted and adjustable so as to reduce the stress to the spinal column and trauma to the surgical incision. 1. A spinal fixation assembly comprising:a first pedicle screw and a second pedicle screw;a first connector plate attached to said first pedicle screw and a second connector plate connected to said second pedicle screw;a first rod connector member attached to said first connector plate and a second rod connector attached to said second connector plate;a spinal rod attached to both said first rod connector member and said second rod connector member;said first and said second pedicle screws each including a cup shaped receiver;each cup shaped receiver including a concave mating surface;said first connector plate having a first end and a second end;said second connector plate having a first end and a second end;said first end on each of said first and second connectors plates including an upper concave surface and a lower convex surface;the second end on each of the first and second connector plates including an upper concave surface and a lower concave surface,the lower convex surface on said ...

Anterior cervical disc replacement

Disclosed is a cervical plate having a polyester staple fiber laminated within a polycarbonate urethane. The polyurethane provides a flexible, high resilience structure with a Dacron® material providing a flexible skeleton. The result is a cervical plate that is flexible but provides the necessary rigidity. An inflatable balloon can be used to mimic the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion.

CERVICAL PLATE WITH SCREW LOCK RETENTION CLIP

A cervical plate having improved mounting screws that employ a retention clip for automatically engaging the head portion of the screw during insertion into countersunk apertures. The arrangement prevents the mounting screws from migrating out of the bone material during use. 1. A cervical plate comprising: a plate having an upper surface and a lower surface with at least two apertures for receipt of mounting screws; a removable retention clip for securement around each aperture , said retention clip having a body with a centrally disposed aperture positional along the lower surface of said plate with first and second arms that are folded over the upper surface of said plate forming a screw mount aperture for engaging a mounting screw head placed through said aperture.2. The cervical plate according to wherein the screw mount aperture comprises a lip recess disposed beneath the upper surface of the plate.3. The cervical plate according to wherein the lip recess is placed about the circumference of the screw mount aperture and is constructed and arranged to receive a portion of a biasing member.4. The cervical plate according to wherein the biasing member comprises an outer surface having a recess engagement portion and a support surface claim 3 , the support surface having a curved entrance surface and a tapered inner surface providing a biasing position for entrance of a screw head.5. The cervical plate according to claim 4 , wherein the mounting screw head engages the biasing member allowing for directional rotation of the mounting screw into the mounting screw hole.6. The cervical plate according to claim 4 , wherein the screw head causes the biasing member to stretch into an open position thereby allowing the mounting screw head to pass.7. The cervical plate according to claim 1 , wherein the plate comprises one or more apertures claim 1 , ports claim 1 , physical or visual access ports claim 1 , grooves or recesses claim 1 , wherein the grooves or recesses are ...

EXPANDABLE SPACER

A spinal implant having a support body and a main body. The support body is positioned between an upper section and a lower section of the main body which are moveable in relation to the support body to increase the distance between the sections. The support body employs an aperture placed through the middle of the support body for receipt of a threaded link having inclined ramps for separating of the sections. 1. The product comprising any feature described , either individually or in combination with any feature , in any configuration.2. A procedure comprising any product described in any order , using any modality either individually or in any combination , with any modality or any feature described. In accordance with 37 C.F.R. 1.76, a claim of priority is included in an Application Data Sheet filed concurrently herewith. Accordingly, the present invention claims priority to U.S. Provisional Patent Application No. 61/952,075, entitled “Expandable Spacer”, filed Mar. 12, 2014. The contents of the above referenced application is incorporated herein by reference in its entirety.This invention relates to the field of orthopedic surgery and, more particularly, to implants to be placed between vertebrae in the spine.Spinal stabilization is one approach to alleviating chronic back pain caused by displaced disk material or excessive movement of individual vertebrae. Conventional stabilization techniques include fusing two or more vertebrae together to circumvent or immobilize the area of excessive movement. Normally, the vertebral disk material which separates the vertebrae is removed and bone graft material is inserted in the space for interbody fusion. In addition to or, in place of, the bone graft material, a spinal implant may be inserted in the intervertebral space.The conventional surgical approach for stabilization has been posteriorly for ease of access to the spine and to avoid interfering with internal organs and tissue. Usually the implant site is prepared to ...

HINGED EXPANDABLE CORPECTOMY DEVICE

The present invention is directed to an adjustable corpectomy device which fits within the intervertebral distracted channel. The device includes a means for engaging an extendable member to accommodate the distracted channel. The corpectomy implant device is defined by a main body, a first expandable plate, and an opposing second expandable plate. Each expandable plate is adapted to fit within the main body in a compressed state, and extends away from the main body in a non-compressed, expanded state. 1. The product comprising any feature described , either individually or in combination with any feature , in any configuration.2. The process comprising any process described , in any order , using any modality , either individually or in combination with any feature , in any configuration. In accordance with 37 C.F.R. 1.76, a claim of priority is included in an Application Data Sheet filed concurrently herewith. Accordingly, the present invention claims priority to U.S. Provisional Patent Application No. 61/952,068, entitled “HINGED EXPANDABLE CORPECTOMY DEVICE”, filed Mar. 12, 2014. The contents of the above referenced application is incorporated herein by reference in its entirety.The invention generally relates to improvements to vertebral implants and, more particularly, to a longitudinally expandable vertebral implant including telescoping sections configured for incremental expansion by a ratchet expander for ease of securement at any desired increment in situ.The spine consists of vertebrae that are categorized into sections known as the cervical, thoracic and lumbar section in a flexible arranged column. The vertebrae are separated by small cartilaginous cushions known as intervertebral discs. Intervertebral discs are oblate spherical structures that maintain the space between adjacent vertebrae. Each intervertebral disc consists of an outer annulus fibrosus, which surrounds the inner nucleus pulposus. The annulus fibrosus consists of several layers of ...

BILATERAL CLAMPING SPACER

A spinal implant for stabilizing two adjacent vertebrae having a damaged disc therebetween is assembled in situ. The implant consists of a bone tray, an anchor, a retainer plate, a retainer, and mounting screws. The bone tray bone tray is elliptical shaped and includes an open top side and an open bottom side, the top side and the bottom side adapted to engage the end plates of adjacent vertebrae, respectively, the bone tray having a sidewall connecting the top side and the bottom side, the sidewall having an bore therethrough. The retainer is slidably extending through the bore whereby the distractor anchor is adapted to be inserted between adjacent vertebrae and the retainer extends through the retainer plate. The retainer plate is secured to the vertebrae body by mounting screws. A driver, not shown, is adapted to rotate the retainer which engages the distractor anchor to engage the bone tray. 1. The product comprising any feature described , either individually or in combination with any feature , in any configuration.2. A procedure comprising any product described in any order , using any modality either individually or in any combination , with any modality or any feature described. In accordance with 37 C.F.R. 1.76, a claim of priority is included in an Application Data Sheet filed concurrently herewith. Accordingly, the present invention claims priority to U.S. Provisional Patent Application No. 61/953,621, entitled “BILATERAL CLAMPING SPACER”, filed Mar. 14, 2014. The contents of the above referenced application is incorporated herein by reference in its entirety.This invention relates to the field of orthopedic surgery and to spinal implants.The spinal disc is the natural shock absorber located between all vertebrae. In the event it becomes traumatized through injury or degenerates through age or disease, the intervertebral space is reduced through compression and the relative movement of adjacent vertebrae causes pain. The surgical approach to this ...

Spinal Implant Device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device. 1. A spinal fusion device for implanting or placing between adjacent vertebrae comprising:a hollow body having an upper section with a top surface for contacting one vertebra and a lower section having a bottom surface for contacting an adjacent vertebra, said top surface and said bottom surface having a means for engaging the vertebra, each section having depending sidewalls, a top sidewall being slidably mounted over a bottom sidewall, each sidewall having means for engaging a distractor;a hollow body section, said body section having a first end comprising an angled surface and a second end comprising an opening for disposing of a distractor; and,a distractor.2. The spinal fusion device of claim 1 , wherein the distractor comprises:an actuator at one end of an elongated member disposed through the opening of the second end of the hollow body section,a distractor body comprising protruding members, wherein the protruding members are engaged by slots or grooves in the sidewalls of the upper and lower sections, whereby the distance between the top and bottom surfaces is adjustable as the protruding members of the distractor body move within the slots or grooves thereby moving the upper section relative to the lower section.3. The spinal fusion device of claim 2 , wherein the elongated member comprises threading for slidably moving the distractor body.4. The spinal fusion device of claim 1 , wherein the opening on the second end of the body section of the device further comprises threads for engaging the rod member of the distractor and is aligned with an opening in the distractor body for receiving the elongated member and to move the distractor body relative to the depending sidewalls as the actuator is ...

Spinal Implant Device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device. 1. A spinal fusion device for implanting or placing between adjacent vertebrae comprising:a hollow body having an upper section with a top surface for contacting one vertebra and a lower section having a bottom surface for contacting an adjacent vertebra, said top surface and said bottom surface having a means for engaging the vertebra, each section having depending sidewalls, a top sidewall being slidably mounted over a bottom sidewall, each sidewall having means for engaging a distractor;a hollow body section, said body section having a first end comprising an angled surface and a second end comprising an opening for disposing of a distractor; and a distractor; said hollow body constructed and arranged for receipt of bone graftmaterial.2. The spinal fusion device of claim 1 , wherein the distractor comprises:an actuator at one end of an elongated member disposed through the opening of the second end of the hollow body section,a distractor body comprising protruding members, wherein the protruding members are engaged by slots or grooves in the sidewalls of the upper and lower sections, whereby the distance between the top and bottom surfaces is adjustable as the protruding members of the distractor body move within the slots or grooves thereby moving the upper section relative to the lower section.3. The spinal fusion device of claim 2 , wherein the elongated member comprises threading for slidably moving the distractor body.4. The spinal fusion device of claim 1 , wherein the opening on the first end of the body section of the device further comprises threads for engaging the rod member of the distractor and is aligned with an opening in the distractor body for receiving the elongated member and to move the ...

Facet fixation targeting guide

A facet fixation device formed from an anchor screw and a collet or facet screw that is secured to adjacent pedicles. The anchor screw has an aperture for receipt of a first end of a guide wire or polyaxial based facet screw. The collet includes a unidirectional attachment mechanism wherein a wire can be drawn to a desired position to fix the distance between the anchor screw and the collet. Excess wire can then be removed.

Plif hinged spacer

A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand the height and to maintain a space therebetween. The insert body may include a leading edge that is tapered to allow ease of insertion. A trailing edge of the insert body includes a pin to allow ease of insertion along a curvature path.

CERVICAL CAGE

A cervical plate formed from an expandable clip that is drawn toward a plate by use of a draw screw coupled to a draw bar. The draw bar is placed in an aperture having engagement with an angular surface that operates in conjunction with a proximal and distal end of the clip, which engages a tab to cause expansion when the draw screw engages the draw bar across a plate. 1. A cervical implant comprising:an expandable clip defined by an upper member having a substantially planar top surface and an angular shaped bottom surface with a proximal end with opposing side surfaces extending to a hinged end conjoined with a lower member having a substantially planar lower surface and an angular shaped inner surface constructed and arranged to interface with said angular shaped bottom surface of said upper member, said lower member having a distal end juxtapositioned to said proximal end, said hinged end forming an aperture extending between said opposing side surfaces;a draw bar insertable into said aperture of said hinged end having a centrally disposed threaded receptacle for receipt of a draw screw;a plate having a top wall, a bottom wall, and two side walls with a front surface and a back surface defining a width therebetween for support of a frame element, said plate having a plurality of bone screw receptacles and a strut means for maintaining a draw screw for engaging said draw bar, said plate including first and second expansion tabs;said draw screw engages said plate to pull said draw bar toward said plate, said proximal and distal end of said expandable clip engaging said tabs to create an expansion distance between said upper and lower members with said draw bar engaging said angular shaped inner surface, providing uniform expansion of said expandable clip.2. The cervical implant according to wherein said upper surface of said top member and said outer surface of said bottom member have stippled teeth.3. The cervical implant according to wherein angular shaped inner ...

PLIF opposing wedge ramp

A spinal fusion implant for implantation between adjacent vertebrae is formed in the approximate shape of a hollow cube. The device has an upper section and a lower section separated by a distractor all of which are relatively movable. The sidewalls of the upper section and the lower section terminate in inclined planes so that the sections move away from each other as the wedge shaped distractor increases the height of the device.

Facet fixation targeting guide

A facet fixation device formed from an anchor screw and a collet or facet screw that is secured to adjacent pedicles. The anchor screw has an aperture for receipt of a first end of a guide wire or polyaxial based facet screw. The collet includes a unidirectional attachment mechanism wherein a wire can be drawn to a desired position to fix the distance between the anchor screw and the collet. Excess wire can then be removed.

Polyaxial modular skeletal hook

A modular skeletal hook has an upper module for connecting with larger support apparatus to maintain bones of the skeleton in fixed relationship. The upper module is connected to an attachment module by a modified ball and socket arrangement. The attachment module has a C-shaped hook for engaging the bone. The angular orientation of the upper module and the attachment module may be fixed by a set screw threaded through the upper module and the attachment module.

Polyaxial screw

A polyaxial screw is used to secure orthopedic appliances to bone, particularly the spine. The polyaxial screw has a shaft including a helical screw thread for securing the screw to bone. One end of the shaft has a reverse tapered head tapering toward and away from the shaft from an enlarged median. A spherical shaped swivel, having an opening smaller than the median, is snapped over the head to rotatably engage the shaft. A connector with a dome shaped cavity on one end and bifurcated tabs on the other is connected with the swivel and tightened in place with a set screw and guide ring. An appliance is held between the bifurcated tabs. The tabs are frangible to reduce the profile above the appliance.

Medical fastener and tool

A drive system for a surgical fastener is composed of a drive tool with a drive tip that mates closely with the recess formed in the head of a threaded fastener. The surgical fastener has a head with a quadrilobe fitting therein which closely mates with the quardilobe tip of the tool. The cooperating drive surfaces align the fastener and tool coaxially and produce four point contact equidistant about the circumference of said fastener significantly reducing angular excursions of the fastener during placement in the bone.

Anterior cervical disc replacement

Disclosed is a cervical plate having a polyester staple fiber laminated within a polycarbonate urethane. The polyurethane provides a flexible, high resilience structure with a Dacron® material providing a flexible skeleton. The result is a cervical plate that is flexible but provides the necessary rigidity. An inflatable balloon can be used to mimic the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion.

Cervical Plate Ratchet Pedicle Screws

A dynamic cervical plate has a ratchet and pawl mechanism that allows the cervical plate to post operatively shorten the length of the plate and maintain compression between adjacent vertebrae. The plate has an elongated shaft with teeth on one surface and a groove along each longitudinal edge. A lateral plate is attached on one end of the shaft. The plate has screw holes for connecting with the head of a spinal screw. Another lateral plate is slidably engaged in the longitudinal grooves along the shaft and has a spring clip acting as a pawl with the teeth on the shaft. The sliding bar has screw holes on each side of the shaft. The clip is configured to span the screw holes to automatically engage and prevent screws from backing out of the holes.

Spinal implant

A spinal implant for insertion in the intervertebral space is formed as a hollow cage, wedge shaped in profile, with a lesser height leading end for a low profile entry. The cage has two open sides with a plurality of angled teeth along opposite longitudinal edges for engaging the end plates of adjacent vertebrae when the cage is rotated into position. One portion of the angled teeth is angled toward an end of the cage and another portion of the angled teeth is angled away from that end to provide a lock preventing the cage from migrating ventrally or dorsally from the spine. Upon rotation, the leading end has a greater height than the trailing end. Opposing side walls of the cage include recesses to facilitate rotation of the cage and minimize stress on adjacent vertebrae.

Spinal implant device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device.

Bone anchor based retractor/distractor

A bone anchor based retractor/distractor assembly for simultaneous tissue retraction and disc space distraction utilizing an adjustable, flexible wire to secure the bone anchors during the distraction process. The assembly includes first and second modular retractor/distractor blades that can be detached for securing to the bone anchor. Each blade has a pivot pin and blade connector with a rotatable knob for adjusting of a wire releasably securable to a bone anchor. The blade connectors are attached to the first and second arm elements, each having a stabilizing arm that is movable in relation to each other by a threaded draw rod having an adjustment knob for activating movement. A main body is secured to a medial retraction blade by an arm having a gear member operatively associated with a gear knob for incremental movement of the medial retraction blade.

Spinal implant device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or contracting the device in cooperation with a hinge assembly.

Bone fixation plate

A bone plate for use in anterior lumbar spinal fixation has interlocking components to prevent dislodgement of the plate due to anatomical forces. The exposed surface of the plate is smooth to prevent trauma to internal body tissue. The plate spans the intervertebral space with each end attached to an adjacent vertebrae by locking screws threadably engaged with tubular bone anchors. The bone anchors include helical members are threaded through the bone plate and inserted into holes within the bone. The plate has a countersunk cavity including portions overlapping the locking screws. A locking cap fits in the cavity to secure the other end of the locking screws from backing-out of the plate. The locking cap includes at least two chamfered portions that cooperate with mating recesses in the countersunk cavity of the bone plate.

Polyaxial modular skeletal hook

Polyaxial modular skeletal hook

A modular skeletal hook has an upper module for connecting with larger support apparatus to maintain bones of the skeleton in fixed relationship. The upper module is connected to an attachment module by a modified ball and socket arrangement. The attachment module has a C-shaped hook for engaging the bone. The angular orientation of the upper module and the attachment module may be fixed by a set screw threaded through the upper module and the attachment module.

Expanders For Rod Retraction

In one embodiment, an expander set includes a first and second expander. The first expander includes an outer surface having a first engagement feature and a groove and the second expander includes an inside surface having a second engagement feature adapted to engage with the first engagement feature. The inside surface of the second expander is shaped to correspond to a portion of the outer surface of the first expander. Additionally, the groove on the outer surface of the first expander is sized and shaped to accommodate a rod of a retraction system such that when the first expander is advanced within the retraction system, the rod remains within the groove. When the first and second expanders are engaged with one another, they define an oblong cross-section.

Osteorasp hand grip

Cervical plate with screw lock retention clip

A cervical plate having improved mounting screws that employ a retention clip for automatically engaging the head portion of the screw during insertion into countersunk apertures. The arrangement prevents the mounting screws from migrating out of the bone material during use.

Hinged expandable corpectomy device

The present invention is directed to an adjustable corpectomy device which fits within the intervertebral distracted channel. The device includes a means for engaging an extendable member to accommodate the distracted channel. The corpectomy implant device is defined by a main body, a first expandable plate, and an opposing second expandable plate. Each expandable plate is adapted to fit within the main body in a compressed state, and extends away from the main body in a non-compressed, expanded state.

Spinal implant device

A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device.